Earthquake with magnitude of Md 2.9 on date 24-12-1990 and time 14:46:49 (Italy) in region Costa Siracusana (Siracusa)

A magnitude Md 2.9 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 24-12-1990 13:46:49 (UTC)
  • 24-12-1990 14:46:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.218, 15.377 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Augusta SR 14 36305 36305
Priolo Gargallo SR 18 12091 48396
Siracusa SR 19 122291 170687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Siracusa (122291 inhabitants)
41 Km SE of Catania (314555 inhabitants)
48 Km SE of Acireale (52622 inhabitants)
66 Km NE of Ragusa (73313 inhabitants)
68 Km NE of Modica (54633 inhabitants)
80 Km E of Vittoria (63339 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.9
ML-VAX 2.7
1990-12-24
13:46:49
37.218 15.377 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 132989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-24 13:46:49 ± 0.457
Latitude 37.2180 ± 0.0273
Longitude 15.3770 ± 0.0339
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132989

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4270.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.0034
Epicentral distance of station farthest from the epicenter (degree) 0.01336
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 132989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:03:55

ML:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 132989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FAI.Z. 1990-12-24T13:47:34.98 10.0 undecidable manual SN 272 0.0122 1.58 0
--.DR2.Z. 1990-12-24T13:47:34.20 10.0 undecidable manual SN! 16 0.0134 -2.34 0
--.GIB.Z. 1990-12-24T13:47:33.50 10.0 undecidable manual SN 305 0.0118 1.08 0.2
--.SOI.Z. 1990-12-24T13:47:26.57 10.0 undecidable manual SG! 31 0.0091 2.06 0
--.MSI.Z. 1990-12-24T13:47:24.00 10.0 undecidable manual SG 7 0.0089 -0.04 0.6
--.ATN.Z. 1990-12-24T13:47:21.80 10.0 undecidable manual SG 3 0.0084 -0.55 0.5
--.MNO.Z. 1990-12-24T13:47:21.70 10.0 undecidable manual SG 322 0.008 0.21 0.6
--.DR2.Z. 1990-12-24T13:47:16.40 10.0 positive manual PN 16 0.0134 -0.16 2.5
--.GIB.Z. 1990-12-24T13:47:15.52 10.0 undecidable manual PN 305 0.0118 1.34 0.2
--.FAI.Z. 1990-12-24T13:47:15.00 10.0 undecidable manual PN 272 0.0122 0.26 1.2
--.MSI.Z. 1990-12-24T13:47:10.00 10.0 undecidable manual PG 7 0.0089 0.66 1
--.SOI.Z. 1990-12-24T13:47:09.89 10.0 undecidable manual PG 31 0.0091 0.29 1.4
--.GA2.Z. 1990-12-24T13:47:09.50 10.0 negative manual PG 20 0.0091 -0.21 3
--.ATN.Z. 1990-12-24T13:47:07.97 10.0 positive manual PG 3 0.0084 -0.39 2.7
--.MNO.Z. 1990-12-24T13:47:06.71 10.0 undecidable manual PG 322 0.008 -0.79 0.8
--.MEU.Z. 1990-12-24T13:47:04.72 10.0 undecidable manual SG 256 0.004 -1.79 0
--.PZI.Z. 1990-12-24T13:47:02.90 10.0 undecidable manual SG 244 0.0034 -1.06 0.2
--.PZI.Z. 1990-12-24T13:46:58.45 10.0 undecidable manual PG 244 0.0034 0.71 1
--.MEU.Z. 1990-12-24T13:46:58.52 10.0 undecidable manual PG 256 0.004 -0.7 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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